Best O2 Prepaid Data Sim of 2026

Last updated on 03/04/2026
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1
O2 Sim Card preloaded with UNLIMITED Data, Voice and Texts - Valid for 12 Months - includes 35GB roaming in 47 countries. No contracts, No commitment, no credit checks.
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O2 Sim Card preloaded with UNLIMITED Data, Voice and Texts - Valid for 12 Months - includes 35GB roaming in 47 countries. No contracts, No commitment, no credit checks.

SIMPULSE
Main Highlights
  • Unlimited 4G/5G Data, Unlimited Calls & Texts, Valid for 12 months, Easy Activation, No credit checks or contracts
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9.7
Exceptional
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9.7
Exceptional
SIMPULSE

O2 Sim Card preloaded with UNLIMITED Data, Voice and Texts - Valid for 12 Months - includes 35GB roaming in 47 countries. No contracts, No commitment, no credit checks.

Main Highlights
  • Unlimited 4G/5G Data, Unlimited Calls & Texts, Valid for 12 months, Easy Activation, No credit checks or contracts
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Value for Money
2
O2 Unlimited Data SIM - Preloaded for 6 Months - No Contract - Quick Activation Within 1 Working Day - Mobile Broadband for Routers, Tablets & Phones
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O2 Unlimited Data SIM - Preloaded for 6 Months - No Contract - Quick Activation Within 1 Working Day - Mobile Broadband for Routers, Tablets & Phones

Scancom
Why we love it
  • Easy anytime activation process.
  • Renewable data for longer use.
  • Compatible with various devices.
Main Highlights
  • ANYTIME ACTIVATION - Activate your Sim by scanning the supplied QR Code and enjoy 6 months of 4G & 5G data. We will activate your sim within 1 business day.
  • DATA RENEWAL OPTION - Extend your data usage beyond the initial term with the option to renew at the end, ensuring continuous connectivity without interruption.
  • UNIVERSAL DEVICE COMPATIBILITY - Optimised for Smartphones, Tablets, Laptops, Mobile Wi-Fi Dongles, Routers, IoT Devices, Smart Meters, Vehicles, Drones, GPS Trackers, Smart Home Devices & Security Cameras.
  • DEDICATED CUSTOMER SUPPORT - For any connection queries, our customer support team at Scancom is ready to assist you. Please contact support@scancom.co.uk
  • ZERO CONTRACTS - Benefit from our data services without the burden of contracts or recurring fees.
  • VERSATILE TRIPLE CUT SIM - Our all-in-one sim card fits any Standard, Micro, and Nano size device.
  • EXCLUSIVE UK DATA-ONLY - Tailored for data usage with a 600GB/month fair use UK-only data allowance. This Sim card does not support calls, texts, or roaming.
  • *Breach of fair usage policy: Data usage where users regularly tether to 12 or more devices or have used 600GB of data twice within a 6-month period. This includes fraudulent, abusive, illegal, nuisance, or outside normal commercial practice usage.
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9.6
Superb
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9.6
Superb
Scancom

O2 Unlimited Data SIM - Preloaded for 6 Months - No Contract - Quick Activation Within 1 Working Day - Mobile Broadband for Routers, Tablets & Phones

Why we love it
  • Easy anytime activation process.
  • Renewable data for longer use.
  • Compatible with various devices.
Main Highlights
  • ANYTIME ACTIVATION - Activate your Sim by scanning the supplied QR Code and enjoy 6 months of 4G & 5G data. We will activate your sim within 1 business day.
  • DATA RENEWAL OPTION - Extend your data usage beyond the initial term with the option to renew at the end, ensuring continuous connectivity without interruption.
  • UNIVERSAL DEVICE COMPATIBILITY - Optimised for Smartphones, Tablets, Laptops, Mobile Wi-Fi Dongles, Routers, IoT Devices, Smart Meters, Vehicles, Drones, GPS Trackers, Smart Home Devices & Security Cameras.
  • DEDICATED CUSTOMER SUPPORT - For any connection queries, our customer support team at Scancom is ready to assist you. Please contact support@scancom.co.uk
  • ZERO CONTRACTS - Benefit from our data services without the burden of contracts or recurring fees.
  • VERSATILE TRIPLE CUT SIM - Our all-in-one sim card fits any Standard, Micro, and Nano size device.
  • EXCLUSIVE UK DATA-ONLY - Tailored for data usage with a 600GB/month fair use UK-only data allowance. This Sim card does not support calls, texts, or roaming.
  • *Breach of fair usage policy: Data usage where users regularly tether to 12 or more devices or have used 600GB of data twice within a 6-month period. This includes fraudulent, abusive, illegal, nuisance, or outside normal commercial practice usage.
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3
EIOTCLUB Prepaid SIM Card without Contract, Compatible with Vodafone & O2 Network, 36GB for 360 Days, Data Only, No Call or SMS Service
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EIOTCLUB Prepaid SIM Card without Contract, Compatible with Vodafone & O2 Network, 36GB for 360 Days, Data Only, No Call or SMS Service

EIOTCLUB
Why we love it
  • Affordable data for your needs.
  • Wide coverage across Europe.
  • Easy to use and activate.
Main Highlights
  • Affordable data solution - The EIOTCLUB prepaid SIM card comes with 18GB data volume for 180 days. The card only has data, no phone number, no voice or SMS services. Designed for LTE security cameras, mobile WLAN routers, etc.
  • Wide network coverage - In Germany, the SIM card is compatible with the Vodafone and Telefónica network. The SIM card supports 30 European countries and multi-carrier networks, it can automatically switch to the network of the local provider without additional roaming fees.
  • Plug & Play - SIM card without contract, no fixed monthly fee, no additional fee, without complicated activation. Just insert it into your device, very easy to use. It can be used at any time, and the downtime is up to 1 year.
  • 3 in 1 kit - The SIM card is pre-punched in 3 sizes: standard, micro and nano size. Please choose the appropriate size and insert it in the right direction, otherwise it will not be activated.
  • Risk Free Purchase - Your satisfaction is our priority! Please send us a message if you have any questions, and provide your SIM card number for quick help.
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9.6
Superb
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9.6
Superb
EIOTCLUB

EIOTCLUB Prepaid SIM Card without Contract, Compatible with Vodafone & O2 Network, 36GB for 360 Days, Data Only, No Call or SMS Service

Why we love it
  • Affordable data for your needs.
  • Wide coverage across Europe.
  • Easy to use and activate.
Main Highlights
  • Affordable data solution - The EIOTCLUB prepaid SIM card comes with 18GB data volume for 180 days. The card only has data, no phone number, no voice or SMS services. Designed for LTE security cameras, mobile WLAN routers, etc.
  • Wide network coverage - In Germany, the SIM card is compatible with the Vodafone and Telefónica network. The SIM card supports 30 European countries and multi-carrier networks, it can automatically switch to the network of the local provider without additional roaming fees.
  • Plug & Play - SIM card without contract, no fixed monthly fee, no additional fee, without complicated activation. Just insert it into your device, very easy to use. It can be used at any time, and the downtime is up to 1 year.
  • 3 in 1 kit - The SIM card is pre-punched in 3 sizes: standard, micro and nano size. Please choose the appropriate size and insert it in the right direction, otherwise it will not be activated.
  • Risk Free Purchase - Your satisfaction is our priority! Please send us a message if you have any questions, and provide your SIM card number for quick help.
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4
O2 Prepaid Data Sim Card. 25GB of 4G/5G Data for use in over 70+ Countries Worldwide (Valid for 30 Days).Easy to Renew. Includes USA, Canada, Australia, South Africa & Europe.
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O2 Prepaid Data Sim Card. 25GB of 4G/5G Data for use in over 70+ Countries Worldwide (Valid for 30 Days).Easy to Renew. Includes USA, Canada, Australia, South Africa & Europe.

Sims4Travel
Why we love it
  • Global coverage in 70+ countries.
  • No roaming fees worries.
  • Outstanding customer service availability.
Main Highlights
  • WHAT YOU GET: A Prepaid/preloaded O2 Sim Card with 25GB of 4G/5G roaming data for use in 70+ countries worldwide. Includes USA, Canada, Australia, South Africa and Europe. See the full country list in the description below.
  • UNLIMITED DATA SPEEDS: this sim comes with 25GB of 4G/5G data, with no speed restrictions. Enjoy super-fast 4G/5G data speeds + free mobile hotspot/tethering + compatible with VOIP services.
  • HOW YOU GET IT: You receive a 3-in-1 Sim card that includes standard/micro/nano sizes. Activate the sim via an emil/call to Sims4Travel then insert the sim into your device. You can activate the sim before you travel or as soon as you arrive at one of the 70+ countries listed below. Either way, your sim is ready to use within an hour of activation.
  • WHO SHOULD GET IT? Anyone who hates roaming fees when travelling. Keep connected with no hidden costs
  • CUSTOMER SERVICE: We care about our customers. We're available 7 days a week to assist you, call, email or video chat. We take pride in your connectivity
  • LEGAL STUFF: Capable device required. No Personal ID required
  • EUROPEAN ROAMING COUNTRIES: Albania, Austria, Belgium, Bulgaria, Canary Islands, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Faroe Islands, Finland, France, French Territories, Germany, Gibraltar, Greece, Hungary, Iceland, Ireland, Italy (including Vatican City), Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Monaco, Netherlands, Norway, Poland, Portugal (including Madeira), Romania, Slovakia, Slovenia, Spain (including. Balearic Islands), Sweden, Channel Islands (including Guernsey
  • REST OF THE WORLD ROAMING COUNTRIES: Anguilla, Antigua, Aruba, Australia, Barbados, Bermuda, Bosnia & Herzegovina, Canada, Cayman Islands, Dominica, Ghana, Grenada, Jamaica, Kenya, Lesotho, Mexico, Montserrat, Mozambique, Netherland Antilles, New Zealand, South Africa, St Kitts and Nevis, St Vincent, St Lucia, Trinidad & Tobago, Turks and Caicos, UK Virgin Islands, USA.
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9.4
Superb
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9.4
Superb
Sims4Travel

O2 Prepaid Data Sim Card. 25GB of 4G/5G Data for use in over 70+ Countries Worldwide (Valid for 30 Days).Easy to Renew. Includes USA, Canada, Australia, South Africa & Europe.

Why we love it
  • Global coverage in 70+ countries.
  • No roaming fees worries.
  • Outstanding customer service availability.
Main Highlights
  • WHAT YOU GET: A Prepaid/preloaded O2 Sim Card with 25GB of 4G/5G roaming data for use in 70+ countries worldwide. Includes USA, Canada, Australia, South Africa and Europe. See the full country list in the description below.
  • UNLIMITED DATA SPEEDS: this sim comes with 25GB of 4G/5G data, with no speed restrictions. Enjoy super-fast 4G/5G data speeds + free mobile hotspot/tethering + compatible with VOIP services.
  • HOW YOU GET IT: You receive a 3-in-1 Sim card that includes standard/micro/nano sizes. Activate the sim via an emil/call to Sims4Travel then insert the sim into your device. You can activate the sim before you travel or as soon as you arrive at one of the 70+ countries listed below. Either way, your sim is ready to use within an hour of activation.
  • WHO SHOULD GET IT? Anyone who hates roaming fees when travelling. Keep connected with no hidden costs
  • CUSTOMER SERVICE: We care about our customers. We're available 7 days a week to assist you, call, email or video chat. We take pride in your connectivity
  • LEGAL STUFF: Capable device required. No Personal ID required
  • EUROPEAN ROAMING COUNTRIES: Albania, Austria, Belgium, Bulgaria, Canary Islands, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Faroe Islands, Finland, France, French Territories, Germany, Gibraltar, Greece, Hungary, Iceland, Ireland, Italy (including Vatican City), Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Monaco, Netherlands, Norway, Poland, Portugal (including Madeira), Romania, Slovakia, Slovenia, Spain (including. Balearic Islands), Sweden, Channel Islands (including Guernsey
  • REST OF THE WORLD ROAMING COUNTRIES: Anguilla, Antigua, Aruba, Australia, Barbados, Bermuda, Bosnia & Herzegovina, Canada, Cayman Islands, Dominica, Ghana, Grenada, Jamaica, Kenya, Lesotho, Mexico, Montserrat, Mozambique, Netherland Antilles, New Zealand, South Africa, St Kitts and Nevis, St Vincent, St Lucia, Trinidad & Tobago, Turks and Caicos, UK Virgin Islands, USA.
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5
O2 Unlimited Data SIM - Preloaded for 2 Months - No Contract - Quick Activation Within 1 Working Day - Mobile Broadband for Routers, Tablets & Phones
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O2 Unlimited Data SIM - Preloaded for 2 Months - No Contract - Quick Activation Within 1 Working Day - Mobile Broadband for Routers, Tablets & Phones

Scancom
Why we love it
  • Anytime activation within 1 day.
  • Zero contracts or recurring fees.
  • Universal device compatibility guaranteed.
Main Highlights
  • ANYTIME ACTIVATION - Activate your Sim by scanning the supplied QR Code and enjoy 2 months of 4G & 5G data. We will activate your sim within 1 business day.
  • DATA RENEWAL OPTION - Extend your data usage beyond the initial term with the option to renew at the end, ensuring continuous connectivity without interruption.
  • UNIVERSAL DEVICE COMPATIBILITY - Optimised for Smartphones, Tablets, Laptops, Mobile Wi-Fi Dongles, Routers, IoT Devices, Smart Meters, Vehicles, Drones, GPS Trackers, Smart Home Devices & Security Cameras.
  • DEDICATED CUSTOMER SUPPORT - For any connection queries, our customer support team at Scancom is ready to assist you. Please contact support@scancom.co.uk
  • ZERO CONTRACTS - Benefit from our data services without the burden of contracts or recurring fees.
  • VERSATILE TRIPLE CUT SIM - Our all-in-one sim card fits any Standard, Micro, and Nano size device.
  • EXCLUSIVE UK DATA-ONLY - Tailored for data usage with a 600GB/month fair use UK-only data allowance. This Sim card does not support calls, texts, or roaming.
  • *Breach of fair usage policy: Data usage where users regularly tether to 12 or more devices or have used 600GB of data twice within a 6-month period. This includes fraudulent, abusive, illegal, nuisance, or outside normal commercial practice usage.
Show More
9.3
Superb
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9.3
Superb
Scancom

O2 Unlimited Data SIM - Preloaded for 2 Months - No Contract - Quick Activation Within 1 Working Day - Mobile Broadband for Routers, Tablets & Phones

Why we love it
  • Anytime activation within 1 day.
  • Zero contracts or recurring fees.
  • Universal device compatibility guaranteed.
Main Highlights
  • ANYTIME ACTIVATION - Activate your Sim by scanning the supplied QR Code and enjoy 2 months of 4G & 5G data. We will activate your sim within 1 business day.
  • DATA RENEWAL OPTION - Extend your data usage beyond the initial term with the option to renew at the end, ensuring continuous connectivity without interruption.
  • UNIVERSAL DEVICE COMPATIBILITY - Optimised for Smartphones, Tablets, Laptops, Mobile Wi-Fi Dongles, Routers, IoT Devices, Smart Meters, Vehicles, Drones, GPS Trackers, Smart Home Devices & Security Cameras.
  • DEDICATED CUSTOMER SUPPORT - For any connection queries, our customer support team at Scancom is ready to assist you. Please contact support@scancom.co.uk
  • ZERO CONTRACTS - Benefit from our data services without the burden of contracts or recurring fees.
  • VERSATILE TRIPLE CUT SIM - Our all-in-one sim card fits any Standard, Micro, and Nano size device.
  • EXCLUSIVE UK DATA-ONLY - Tailored for data usage with a 600GB/month fair use UK-only data allowance. This Sim card does not support calls, texts, or roaming.
  • *Breach of fair usage policy: Data usage where users regularly tether to 12 or more devices or have used 600GB of data twice within a 6-month period. This includes fraudulent, abusive, illegal, nuisance, or outside normal commercial practice usage.
Show More
6
UNLIMITED UK DATA SIM and UNLIMITED MINUTES + SMS - 4G/5G O2 SIM card - Prepaid Sim, Not Pay as You Go. 25GB EU Roaming. Perfect for EU Holidays or Working Away from Home! (30 days).
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UNLIMITED UK DATA SIM and UNLIMITED MINUTES + SMS - 4G/5G O2 SIM card - Prepaid Sim, Not Pay as You Go. 25GB EU Roaming. Perfect for EU Holidays or Working Away from Home! (30 days).

SimRush
Why we love it
  • Unlimited UK data plus minutes.
  • Great for world travelers.
  • Preloaded, easy, and convenient.
Main Highlights
  • 💂 UNLIMITED UK DATA & MINUTES, as well as UNLIMITED CALLS TO EU from the UK
  • ✈️ 25GB INTERNATIONAL EU DATA ROAMING & UNLIMITED CALLS
  • ☎️ PRELOADED for 30 days of use, NO HIDDEN CHARGES AND NO CONTRACTS. Optional Renewal Available.
  • 📶 UNCAPPED DOWNLOAD SPEEDS on O2's Network. Perfect for a Portable Wifi Hotspot or router, as well as any unlocked cellular device.
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9.1
Superb
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9.1
Superb
SimRush

UNLIMITED UK DATA SIM and UNLIMITED MINUTES + SMS - 4G/5G O2 SIM card - Prepaid Sim, Not Pay as You Go. 25GB EU Roaming. Perfect for EU Holidays or Working Away from Home! (30 days).

Why we love it
  • Unlimited UK data plus minutes.
  • Great for world travelers.
  • Preloaded, easy, and convenient.
Main Highlights
  • 💂 UNLIMITED UK DATA & MINUTES, as well as UNLIMITED CALLS TO EU from the UK
  • ✈️ 25GB INTERNATIONAL EU DATA ROAMING & UNLIMITED CALLS
  • ☎️ PRELOADED for 30 days of use, NO HIDDEN CHARGES AND NO CONTRACTS. Optional Renewal Available.
  • 📶 UNCAPPED DOWNLOAD SPEEDS on O2's Network. Perfect for a Portable Wifi Hotspot or router, as well as any unlocked cellular device.
Show More
7
O2 Data Sim Card Preloaded with UNLIMITED 4G/5G Data. Includes 25GB to Roam for Free in 47 Countries. No Contracts, No Commitments, No Credit Checks, No Tie-ins, No Personal ID. (Valid for 1 Month).
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O2 Data Sim Card Preloaded with UNLIMITED 4G/5G Data. Includes 25GB to Roam for Free in 47 Countries. No Contracts, No Commitments, No Credit Checks, No Tie-ins, No Personal ID. (Valid for 1 Month).

Sims4Travel
Why we love it
  • Unlimited 4G/5G data preloaded.
  • No contracts or commitments.
  • Supports free international roaming.
Main Highlights
  • PRELOADED DATA: O2 SIM Card Preloaded with UNLIMITED 4G/5G Data. Enjoy Super-Fast 4G/5G Data Speeds with the UK’s most reliable network. The Data Sim Bundle lasts for 1 month from first use. Easy to renew your bundle for longer
  • NO CONTRACTS: The Preloaded O2 Data SIM Card is simple to activate. There are No Contracts, No Commitments, No Credit Checks, No Tie-ins & No Personal ID required
  • FREE ROAMING: Includes 25GB of Data which can be used to Roam for Free in any of the 47 countries listed in the description below. So whether you are on Holiday, a Business Trip or Working from Home, you can count on the Preloaded O2 4G/5G Data SIM for reliable & super-fast internet
  • MULTIPLE USES: The Sim comes in a Triple-Sized format, meaning it is suitable for use with all O2 or Unlocked Mobile Wi-Fi devices, Routers, Tablets, iPads, Dongles, Laptops, Mobile Phones, CCTV & Alarm systems. Tethering & Mobile Hotspots are also supported
  • SPEED YOU WILL LOVE: Working from Home, Streaming Online, Gaming, Scrolling through Social Media - The O2 4G/5G Preloaded SIM card provides amazing performance without any speed restrictions
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9.0
Superb
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9.0
Superb
Sims4Travel

O2 Data Sim Card Preloaded with UNLIMITED 4G/5G Data. Includes 25GB to Roam for Free in 47 Countries. No Contracts, No Commitments, No Credit Checks, No Tie-ins, No Personal ID. (Valid for 1 Month).

Why we love it
  • Unlimited 4G/5G data preloaded.
  • No contracts or commitments.
  • Supports free international roaming.
Main Highlights
  • PRELOADED DATA: O2 SIM Card Preloaded with UNLIMITED 4G/5G Data. Enjoy Super-Fast 4G/5G Data Speeds with the UK’s most reliable network. The Data Sim Bundle lasts for 1 month from first use. Easy to renew your bundle for longer
  • NO CONTRACTS: The Preloaded O2 Data SIM Card is simple to activate. There are No Contracts, No Commitments, No Credit Checks, No Tie-ins & No Personal ID required
  • FREE ROAMING: Includes 25GB of Data which can be used to Roam for Free in any of the 47 countries listed in the description below. So whether you are on Holiday, a Business Trip or Working from Home, you can count on the Preloaded O2 4G/5G Data SIM for reliable & super-fast internet
  • MULTIPLE USES: The Sim comes in a Triple-Sized format, meaning it is suitable for use with all O2 or Unlocked Mobile Wi-Fi devices, Routers, Tablets, iPads, Dongles, Laptops, Mobile Phones, CCTV & Alarm systems. Tethering & Mobile Hotspots are also supported
  • SPEED YOU WILL LOVE: Working from Home, Streaming Online, Gaming, Scrolling through Social Media - The O2 4G/5G Preloaded SIM card provides amazing performance without any speed restrictions
Show More
8
O2 Data Sim Card Preloaded with UNLIMITED 4G/5G Data. No Contracts, No Commitments, No Credit Checks, No Tie-ins, No Personal ID. (Valid for 1 Month)
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O2 Data Sim Card Preloaded with UNLIMITED 4G/5G Data. No Contracts, No Commitments, No Credit Checks, No Tie-ins, No Personal ID. (Valid for 1 Month)

Sims4Travel
Why we love it
  • Unlimited high-speed data access.
  • No contracts or commitments.
  • Supports all devices seamlessly.
Main Highlights
  • O2 Data Sim Card Preloaded with UNLIMITED 4G/5G Data. No Contracts, No Commitments, No Credit Checks, No Tie-ins, No Personal ID. (Valid for 1 Month)
  • NO CONTRACTS: The Preloaded O2 Data SIM Card is simple to activate. There are No Contracts, No Commitments, No Credit Checks, No Tie-ins & No Personal ID required.
  • MULTIPLE USES: The Sim comes in a Triple-Sized format, meaning it is suitable for use with all O2 or Unlocked Mobile Wi-Fi devices, Routers, Tablets, iPads, Dongles, Laptops, Mobile Phones, CCTV & Alarm systems and more. Tethering & Mobile Hotspots are also supported.
  • SPEED YOU WILL LOVE: Working from Home, Streaming Online, Gaming, Scrolling through Social Media - The O2 4G/5G Preloaded Data SIM provides amazing performance without any speed restrictions.
Show More
8.9
Excellent
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8.9
Excellent
Sims4Travel

O2 Data Sim Card Preloaded with UNLIMITED 4G/5G Data. No Contracts, No Commitments, No Credit Checks, No Tie-ins, No Personal ID. (Valid for 1 Month)

Why we love it
  • Unlimited high-speed data access.
  • No contracts or commitments.
  • Supports all devices seamlessly.
Main Highlights
  • O2 Data Sim Card Preloaded with UNLIMITED 4G/5G Data. No Contracts, No Commitments, No Credit Checks, No Tie-ins, No Personal ID. (Valid for 1 Month)
  • NO CONTRACTS: The Preloaded O2 Data SIM Card is simple to activate. There are No Contracts, No Commitments, No Credit Checks, No Tie-ins & No Personal ID required.
  • MULTIPLE USES: The Sim comes in a Triple-Sized format, meaning it is suitable for use with all O2 or Unlocked Mobile Wi-Fi devices, Routers, Tablets, iPads, Dongles, Laptops, Mobile Phones, CCTV & Alarm systems and more. Tethering & Mobile Hotspots are also supported.
  • SPEED YOU WILL LOVE: Working from Home, Streaming Online, Gaming, Scrolling through Social Media - The O2 4G/5G Preloaded Data SIM provides amazing performance without any speed restrictions.
Show More
9
O2 Prepaid SIM Card, 8GB Data, Unlimited Calls & Texts, Free EU Roaming
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O2 Prepaid SIM Card, 8GB Data, Unlimited Calls & Texts, Free EU Roaming

GlobalSIMs
Why we love it
  • Massive data for smooth experiences.
  • Unlimited calls and texts included.
  • Flexible top-up options available.
Main Highlights
  • Massive Data Allowance: Enjoy 21GB of high-speed data for browsing, streaming, and more.
  • Unlimited Calls and Texts: Make unlimited calls and send unlimited texts within the UK.
  • Free European Roaming: Travel worry-free with free roaming in Europe.
  • Prepaid Convenience: No contracts or credit checks required for this prepaid SIM card.
  • Data Rollover: Carry over what you don't use
  • Flexible Top-Up Options: Easily top up your account online or at various retail locations.
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8.8
Excellent
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8.8
Excellent
GlobalSIMs

O2 Prepaid SIM Card, 8GB Data, Unlimited Calls & Texts, Free EU Roaming

Why we love it
  • Massive data for smooth experiences.
  • Unlimited calls and texts included.
  • Flexible top-up options available.
Main Highlights
  • Massive Data Allowance: Enjoy 21GB of high-speed data for browsing, streaming, and more.
  • Unlimited Calls and Texts: Make unlimited calls and send unlimited texts within the UK.
  • Free European Roaming: Travel worry-free with free roaming in Europe.
  • Prepaid Convenience: No contracts or credit checks required for this prepaid SIM card.
  • Data Rollover: Carry over what you don't use
  • Flexible Top-Up Options: Easily top up your account online or at various retail locations.
Show More
10
O2 SIM Card UK & EUROPE PREPAID PAYG £15 Bundle 25GB data, unlimited minutes & texts
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O2 SIM Card UK & EUROPE PREPAID PAYG £15 Bundle 25GB data, unlimited minutes & texts

love 2 surf
17% Off
Why we love it
  • Flexible with any unlocked phone.
  • Allows cheap international calls.
  • Includes generous data allowance.
Main Highlights
  • Quick & Easy Sim Activation
  • Included in the bundle 25GB data, unlimited voice minutes and texts
  • Bundle lasts 30 days from activation. Trio SIM fits any unlocked 4G and above phone or devices locked to O2 network. Personal hotspot/tethering allowed.
  • MUST USE SIM IN UK PRIOR TO USE IN EUROPE – data is limited to 25GB while roaming (calls & texts allowance is for UK numbers only)
  • INTERNATIONAL CALLING SERVICE TO USE WITH SIM - E.g. USA - 0.3p/min and EU - 0.3p/min (optional extra)
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8.7
Excellent
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8.7
Excellent
love 2 surf

O2 SIM Card UK & EUROPE PREPAID PAYG £15 Bundle 25GB data, unlimited minutes & texts

17% Off
Why we love it
  • Flexible with any unlocked phone.
  • Allows cheap international calls.
  • Includes generous data allowance.
Main Highlights
  • Quick & Easy Sim Activation
  • Included in the bundle 25GB data, unlimited voice minutes and texts
  • Bundle lasts 30 days from activation. Trio SIM fits any unlocked 4G and above phone or devices locked to O2 network. Personal hotspot/tethering allowed.
  • MUST USE SIM IN UK PRIOR TO USE IN EUROPE – data is limited to 25GB while roaming (calls & texts allowance is for UK numbers only)
  • INTERNATIONAL CALLING SERVICE TO USE WITH SIM - E.g. USA - 0.3p/min and EU - 0.3p/min (optional extra)
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We scanned 552 products

We reviewed these offers relevant to the O2 Prepaid Data Sim within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like SIMPULSE, Scancom, EIOTCLUB, Sims4Travel, SimRush, GlobalSIMs, love 2 surf, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.
For the best O2 Prepaid Data Sim in the market, we considered we took a deep dive into 2761 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that: